[tip: irq/core] irqchip/stm32: Add irq retrigger support
From: tip-bot2 for Alexandre Torgue
Date: Sun Mar 29 2020 - 16:26:53 EST
The following commit has been merged into the irq/core branch of tip:
Commit-ID: 25591d4c6459ce416a319832ce806be7b86183dc
Gitweb: https://git.kernel.org/tip/25591d4c6459ce416a319832ce806be7b86183dc
Author: Alexandre Torgue <alexandre.torgue@xxxxxx>
AuthorDate: Wed, 19 Feb 2020 15:32:28 +01:00
Committer: Marc Zyngier <maz@xxxxxxxxxx>
CommitterDate: Sun, 08 Mar 2020 14:25:45
irqchip/stm32: Add irq retrigger support
This commit introduces retrigger support for stm32_ext_h chip.
It consists to rise the GIC interrupt mapped to an EXTI line.
Signed-off-by: Alexandre Torgue <alexandre.torgue@xxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Tested-by: Marek Vasut <marex@xxxxxxx>
Link: https://lore.kernel.org/r/20200219143229.18084-2-alexandre.torgue@xxxxxx
---
drivers/irqchip/irq-stm32-exti.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index e00f2fa..faa8482 100644
--- a/drivers/irqchip/irq-stm32-exti.c
+++ b/drivers/irqchip/irq-stm32-exti.c
@@ -604,12 +604,24 @@ static void stm32_exti_h_syscore_deinit(void)
unregister_syscore_ops(&stm32_exti_h_syscore_ops);
}
+static int stm32_exti_h_retrigger(struct irq_data *d)
+{
+ struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d);
+ const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank;
+ void __iomem *base = chip_data->host_data->base;
+ u32 mask = BIT(d->hwirq % IRQS_PER_BANK);
+
+ writel_relaxed(mask, base + stm32_bank->swier_ofst);
+
+ return 0;
+}
+
static struct irq_chip stm32_exti_h_chip = {
.name = "stm32-exti-h",
.irq_eoi = stm32_exti_h_eoi,
.irq_mask = stm32_exti_h_mask,
.irq_unmask = stm32_exti_h_unmask,
- .irq_retrigger = irq_chip_retrigger_hierarchy,
+ .irq_retrigger = stm32_exti_h_retrigger,
.irq_set_type = stm32_exti_h_set_type,
.irq_set_wake = stm32_exti_h_set_wake,
.flags = IRQCHIP_MASK_ON_SUSPEND,